Leeuwenhoek — Anton van, Dutch microscopist, 1632–1723. See L. canals, under canal … Medical dictionary
canal — A duct or channel; a tubular structure. SEE ALSO: c., duct. SYN: canalis [TA]. [L. canalis] abdominal c. SYN: inguinal c.. accessory c. a channel leading from the root … Medical dictionary
Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… … Universalium
extraterrestrial life — Introduction life that may exist or may have existed in the universe outside of Earth. The search for extraterrestrial life encompasses many fundamental scientific questions. What are the basic requirements for life? Could life have arisen… … Universalium
Netherlands, The — officially Kingdom of The Netherlands byname Holland Country, northwestern Europe. Area: 16,033 sq mi (41,526 sq km). Population (2002 est.): 16,142,000. Capital: Amsterdam; Seat of Government: The Hague. Most of the people are Dutch. Languages:… … Universalium
Delft — For other uses, see Delft (disambiguation). Delft Municipality … Wikipedia
haversian canal — ha·ver·sian canal hə .vər zhən n, often cap H any of the small canals through which the blood vessels ramify in bone Ha·vers hā vərz, hav ərz Clopton (1655? 1702) British osteologist. In 1691 Havers published the first detailed description of the … Medical dictionary
History of the Netherlands — This article is part of a series Early History … Wikipedia
Dutch Golden Age — History of the Netherlands This article is part of a series Early History … Wikipedia
History of biology — For the video game, see History of Biology (video game). The frontispiece to Erasmus Darwin s evolution themed poem The Temple of Nature shows a goddess pulling back the veil from nature (in the person of Artemis). Allegory and metaphor have… … Wikipedia
photoreception — photoreceptive, adj. /foh toh ri sep sheuhn/, n. the physiological perception of light. [1905 10; PHOTO + RECEPTION] * * * Biological responses to stimulation by light, most often referring to the mechanism of vision. In one celled organisms such … Universalium